Purpose: Find silver produced and compare to predicted.penny-to-silver

Can We Help with Your Assignment?

Let us do your homework! Professional writers in all subject areas are available and will meet your assignment deadline. Free proofreading and copy-editing included.

Cu + 2AgNo3 → Cu(NO3)2 + 2Ag

 

Procedure:

"Be Bold" No-Essay $10,000 Scholarship

The $10,000 “Be Bold” Scholarship is a no-essay scholarship that will be awarded to the applicant with the boldest profile. To us, boldest does not mean “best”, or “most accomplished”. Being bold means being: Earnest, Determined, Moving. The scholarship will be awarded to the student whose profile is most bold, according to these characteristics.

-in small beaker (100-250 mL), weigh beaker

-Add 3.00 OR LESS of AgNo3, weigh AgNo3

-Weigh copper penny

-Add 80 mL H2O

-Heat and dissolve (warm, not boil)

-Put copper penny into AgNo3(aq) –observe

-Allow to sit overnight

-Wash/ decant, then dry

-weigh silver and penny

 

Data: beaker= 67.95 g      penny= 3.14 g     silver (after drying) = 2.03 g     copper reacted= .58 g

 

Calculations: use stoichiometry to find Ag predicted

1. grams → mol Cu

(penny – copper reacted) 2.56 x 1/63.55= .0403

2. mol →mol (ratio)

.0403 x 2/1= .0806 mol Ag

3. mol → grams

.0806 mol Ag x 107.9/1=  8.70 g

READ:
Does Sports affect Academic Average?
guest
0 Comments
Inline Feedbacks
View all comments